Merk/merkenpagina

Notice (8): Undefined index:  merk [APP/controllers/merk/merkenpagina_controller.php, line 18]Code
    function toon() {
        $merk = $this->Merk->findByUrltitel($this->params['merk']);
MerkenpaginaController::toon() - APP/controllers/merk/merkenpagina_controller.php, line 18
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 204
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 84

Notice (8): Undefined index:  pagina [APP/controllers/merk/merkenpagina_controller.php, line 19]Code | Context    function toon() {
        $merk = $this->Merk->findByUrltitel($this->params['merk']);
        $merkenpagina = $this->Merkenpagina->find('first', array('conditions' => array('Merkenpagina.urltitel' => $this->params['pagina'], 'merk_id' => $merk['Merk']['id'])));
$merk	=	false
MerkenpaginaController::toon() - APP/controllers/merk/merkenpagina_controller.php, line 19
Dispatcher::_invoke() - CORE/cake/dispatcher.php, line 204
Dispatcher::dispatch() - CORE/cake/dispatcher.php, line 171
[main] - APP/webroot/index.php, line 84